public Task <string> CancelOrderAsync(Exchange exchange, Interface.Model.User user, string symbol, string orderId, string newClientOrderId = null, long recWindow = 0, CancellationToken cancellationToken = default(CancellationToken))
 {
     return(exchangeService.CancelOrderAsync(exchange, user, symbol, orderId, newClientOrderId, recWindow, cancellationToken));
 }
        public async Task <string> CancelOrderAsync(Interface.User user, string symbol, long orderId, string newClientOrderId = null, long recWindow = 0, CancellationToken cancellationToken = default(CancellationToken))
        {
            var result = await exchangeService.CancelOrderAsync(user, symbol, orderId, newClientOrderId, recWindow, cancellationToken).ConfigureAwait(false);

            return(result);
        }